Email Certificate (S/MIME): Enrollment and Installation Instructions:
Email Certificates (Client/S/MIME) prove online users' identity by allowing you to sign and encrypt emails digitally. There are options for entirely cloud-based deployment for simplicity, on-premises deployment to meet corporate security policies or hybrid deployments for those who want to mix and match.
After you purchase your S/MIME certificate from Shop SSL/TLS, place an order in your dashboard. To place an order, log into your account and go to the 'Recent Order' section in the dashboard.
Choose 'Enroll Certificate' option under 'Action'. On the enrollment page, add your Email ID details that you are looking to secure. Also, submit the organization details before placing the order. After the verification, DigiCert will send an email to your registered email id with an activation link. Follow the simple steps in import the email certificate in your email client.
Here the process to Purchase, Enroll & Install your Email Certificate